DE1949784A1 - Frequenzmodulationsschaltung - Google Patents

Frequenzmodulationsschaltung

Info

Publication number
DE1949784A1
DE1949784A1 DE19691949784 DE1949784A DE1949784A1 DE 1949784 A1 DE1949784 A1 DE 1949784A1 DE 19691949784 DE19691949784 DE 19691949784 DE 1949784 A DE1949784 A DE 1949784A DE 1949784 A1 DE1949784 A1 DE 1949784A1
Authority
DE
Germany
Prior art keywords
frequency
oscillator
detection circuit
signal
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19691949784
Other languages
German (de)
English (en)
Inventor
Jean Chastagnier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE1949784A1 publication Critical patent/DE1949784A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics of the voltage controlled oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0075—FM modulation down to DC

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DE19691949784 1968-09-30 1969-09-29 Frequenzmodulationsschaltung Pending DE1949784A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR168121 1968-09-30

Publications (1)

Publication Number Publication Date
DE1949784A1 true DE1949784A1 (de) 1970-04-30

Family

ID=8655076

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691949784 Pending DE1949784A1 (de) 1968-09-30 1969-09-29 Frequenzmodulationsschaltung

Country Status (5)

Country Link
US (1) US3587003A (enExample)
BE (1) BE739556A (enExample)
DE (1) DE1949784A1 (enExample)
FR (1) FR1594611A (enExample)
NL (1) NL6914591A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513160A (enExample) * 1974-06-25 1976-01-12 Matsushita Electric Industrial Co Ltd
US4052672A (en) * 1976-07-22 1977-10-04 Motorola, Inc. Extended phase-range, high fidelity modulator arrangement
DE2801525A1 (de) * 1978-01-14 1979-07-19 Standard Elektrik Lorenz Ag Winkelmodulierbarer oszillator
FR2439527A1 (fr) * 1978-10-16 1980-05-16 Licentia Gmbh Montage de telecommande, notamment pour recepteurs de radiodiffusion et de television
DE2914814A1 (de) * 1979-04-11 1980-10-30 Siemens Ag Frequenzmodulator

Also Published As

Publication number Publication date
FR1594611A (enExample) 1970-06-08
US3587003A (en) 1971-06-22
BE739556A (enExample) 1970-03-31
NL6914591A (enExample) 1970-04-01

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